TP: offset printing, p. 2-3 [x2], p. [6]: offset printing., Title page: in the upper left corner there is a purple stamp: "58"., Title page: in the upper left corner there is a purple, round stamp: "Instytut Fryderyka Chopina" with handwritten "783/390" in red and black ink., Title page: "op. 28. Nr." is underlined with red crayon., Page 2: at the bottom of the page there is a black, round stamp: "BIBLIOTEKA | NARODOWY INSTYTUT FRYDERYKA CHOPINA" and handwritten shelfmark: "390/n" in pencil., Page [4/6] (the last page): at the top the page there is a black, round stamp: "BIBLIOTEKA | NARODOWY INSTYTUT FRYDERYKA CHOPINA".
